My mom always took her coffee black, so did my grandma, so I think it imparted onto me. For me I like the bitterness, when I take a sip of my morning coffee and it hits there’s nothing like it.
Over the years I’ve tried to get into sugared coffees and I still keep coming back to black. Although every now and then iced coffee with creamer and sugar is a good treat.
I started my first cup or coffee black because I didn’t want the extra caloric content from sugar + cream/milk and just never stopped drinking it black ever since. I guess it also helped that I got the coffee from a mom and pop coffee shop and not like starbucks.